baber/WOPTO huggingface dataset:
Patent GB-1180334-A (GB)
Title: Optical Scanner
Inventor: PEARSON RONALD FERGUSON
IPC: G02F1/29
Filed: 1968-04-05
Abstract: 1,180,334. Light deflectors. MULLARD Ltd. 5 April, 1968, No. 16542/68. Heading H4F. Optical scanning apparatus comprises an array of magneto-optical Faraday effect elements each intercepting a different elemental portion of an optical path, and means for magnetically energizing the elements with an energization cycle such that each element of the array sequentially rotates the polarization plane of light travelling therethrough to an orientation such that thereafter the light is transmitted by an analyser, the other elements' light outputs being stopped by the analyser. The elements may be arranged to be effectively transparent when magnetically unsaturated and effectively opaque when saturated or vice versa. Alternatively the elements may be effectively transparent when magnetically saturated in one sense and effectively opaque when saturated in the other sense. The apparatus may be used in an image converter or in a televisiontype picture display. The Faraday effect material may comprise doped yttrium iron (or aluminium) garnet. The elements of the array may be subjected to a constant magnetic field Ho, Fig. 1, which exceeds the saturation magnetic field, an element being rendered unsaturated when energized by both a row control lead R 1  and a column control lead C 1 ; an element which is excited by either a row or a column control lead but not both being still saturated. In a second embodiment each element has its own control wire, Fig. 3 (not shown), and this embodiment may operate without a constant bias field Ho, only saturated fields rendering an element effectively transparent. In a further embodiment an array of elements 1, Fig. 5, are subjected to a time varying field H ac  which at any one time is spatially uniform over the area of the array, and to a time constant bias field H dc  which is spatially non- uniform with positive gradients from top to bottom and from right to left of the array as shown by the straight line plots 11 and 12. All the elements including 1 MIN  which is subjected to the smallest H dc  are saturated by H dc  in the absence of other fields. The scan may start at 1 MIN  by applying field H ac  in the opposite direction to H dc , for as H ac  increases it passes through H MIN , desaturating 1 MIN  rendering it transparent, and then increases to saturate 1 MIN  rendering it again opaque, at which time the next element is rendered transparent by the increased field H ac , and so on.
Patent GB-1387021-A (GB)
Title: Semiconductor device manufacture
IPC: H01L27/082
Filed: 1972-04-11
Abstract: 1387021 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 April 1972 [14 April 1971] 16609/72 Heading H1K A semi-conductor device region, e.g. containing active zones 7, 8, is isolated from the remainder of a semiconductor layer 3 and from the substrate 1, 2 by an inset ring 5A of insulating material and by two superposed buried layers 4, 9 of opposite conductivity type and wherein the isolated semi-conductor layer region is divided into two island-shaped regions I, II by a further insulating material region 5B that does not extend through the topmost buried layer 9, in one of which island-shaped regions (I) the semi-conductor circuit element is at least partly provided. The arrangement enables complementary circuit elements, e.g. bipolar transistors, P-N junction FET's, IGFET's or P-N-P-N structures, to be insulated both from each other and from the substrate and constructed as a compact monolithic integrated circuit. In the manufacture of the arrangement shown, boron is diffused into an N-type Si plate 1 to form P-type layers 4, 11 using a thermally grown oxide mask. N-type Si layer 2 is epitaxially grown thereover and N-type layer 9 is formed by diffusing arsenic into the region 4. N-type epitaxial Si layer 3 is then grown and a masking layer of silicon nitride formed thereover and, through holes etched through the silicon nitride, the Si layer 3 is oxidized at 1000‹ C. in moist oxygen to form the inset oxide pattern 5, thus forming island-shaped regions I to V in the layer 3. The island IV is made fully P-type by deep boron diffusion, and P-type zones 13, 7, 14 are formed by less deep boron diffusionwith these diffusions the inset oxide 5 acts as a diffusion mask. Using an apertured oxide layer formed by thermal conversion of SiH4 and O2 N-type zones 8, 15 and N-type contact regions in base zone 12 and island II are formed by phosphorus diffusion. Al contacts 16-25 are formed by vapour deposition and photolithographic etching. Thus two complementary bipolar transistors are provided which may have mutually comparable doping concentrations. P-type zone 7, for example, forming the base zone of a bipolar transistor may have a homogeneous or a varying dopant concentration profile. The buried layers 4, 11 need not be separate and, if desired, may be maintained at a floating potential. The doping of the various regions may alternatively be carried out by ion implantation or by diffusion out of a doped oxide layer.
Patent GB-139988-A (GB)
Title: Improvements in milk and like strainers
IPC: A01J11/06
Filed: 1919-07-03
Abstract: 139,988. Brown, A. D. July 3, 1919. Funnel filters.-Milk or other liquid supplied to a receiver 5 passes through a preliminary filter 11, down a well 6 perforated at its lower end, and then upward through a filter 8, which is supported between projecting ribs 10 on the walls of the can 1 and of the well 6 respectively.
Patent GB-1280831-A (GB)
Title: Improvements in or relating to tool holding assemblies
Inventor: HEAD KENNETH AUBREY JOSEPH
IPC: B23B29/20
Filed: 1968-04-06
Abstract: 1280831 Tool holding assemblies K A J HEAD 7 July 1969 [6 April 1968] 16664/68 Heading B3T A tool holder assembly comprises a mounting portion 1 for securing to a machine tool, a tool carrying portion 5 and an intermediate portion 4 constituted by two parts 9 and 13 which have interengaging part spherical surfaces 16, 17 which are slidable one on the other to facilitate angular adjustment of the tool carrying portion 5 with respect to the mounting portion 1. The tool carrying portion 5 is secured by screws 12 to the part 9 of the intermediate portion and the intermediate ports 9 and 13 are secured to the mounting portion 1 by screws 18 and retained thereby in the adjusted position. The abutting plane surfaces 14 and 15 on the part 13 and mounting portion 1 respectively permit transverse adjustment between the tool carrier 5 and mounting portion 1. The clamping-screws 18 are provided with washers 20 which have part spherical surfaces which engage corresponding surfaces in the counter bores in the port 9. The tool carrying portion may have a parallel or tapered bore for the reception of a cutting tool.
Patent GB-571711-A (GB)
Title: Improvements in means for raising and transporting barrels or the like
IPC: B62B1/10
Filed: 1944-02-12
Abstract: 571,711. Hand trucks. DONALD, J. M. Feb. 12, 1944, No. 16670/43. [Class 108 (i)] A trolley for carrying barrels &c. has attached to its side frames a two vertical semicircular segments e on which the trolley rolls when the handles b are depressed to lift the load after the shoe c has been engaged with the barrel. Vertical stays f<1> of the segments e, additional to the stays f, carry an axle for transport wheels h, the rims of which extend slightly beyond the semicircular segments. Arcuate straps k support the barrel during transport. Feet j are attached to the segments e.
Patent GB-1197712-A (GB)
Title: Syringes for Injection of Drugs Stored in Powder Form.
Inventor: BANE ARTHUR
IPC: A61M5/32
Filed: 1966-04-15
Abstract: 1,197,712. Hypodermic syringes. A. BANE. 10 July, 1967 [15 April, 1966], No. 16678/66. Heading A5R. A hypodermic syringe, intended for use in the injection of a drug which is stored in powder form and which is mixed with a solvent only immediately before injection, comprises a support, a first sealed container for the powder (or solvent) fixedly or removably mounted on one end of the support, a needle carrier arranged for axial sliding movement within the support, a hypodermic needle pointed at both ends and fixedly mounted in the needle carrier with one pointed end projecting therefrom towards the first container and the other pointed end projecting therefrom in a direction away from the first container, a needle cover removably mounted by one of its ends on the other end of the support and enclosing the other pointed end of the needle, and a second sealed container for the solvent (or powder) fixedly or removably mounted on the other end of the needle cover, the arrangement being such that the needle cover is axially slidable with respect to the support from an inoperative position in which the entire length of the needle is between the containers to an operative position in which the two containers are pierced by the respective adjacent pointed ends of the needle. In the embodiment of syringe illustrated in Figure 1, a first container 1 is adapted to be screwed. into and is removable from a support 2 within which a needle carrier 3 provided with a shoulder 9 is arranged and upon which a needle cover 4 is mounted by a bayonet joint which comprises projections 5 formed on the support and slots 6 formed in the needle cover. Formed integrally with the needle cover and sealed from the interior thereof by an integrally formed transverse diaphragm 7 is a second container 8. In order to use the syringe, the needle cover is axially advanced towards the support so that the transverse diaphragm is pierced by a first end of the needle, a step 10 formed on the interior of the needle cover engaging an end surface 12 of the needle carrier to effect movement thereof so that an end wall of the first container is pierced by a second end of the needle and is engaged by an end surface 11 of the needle carrier. Only after the needle cover has been so advanced towards the support thereby to effect piercing of both containers can the bayonet connection between the support and needle cover be released. Instead of being formed integrally with the needle cover (as illustrated), the second container may be separate from and adapted to be mounted on the needle cover; the first container either may be a rigid container comprising a piston or may be a deformable ampoule, for example a bellows-type ampoule as disclosed in Specification 1,095,316.
Patent GB-421110-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B29/04
Filed: 1934-06-06
Abstract: 421,110. Pumps; cooling exhaust. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. June 6, 1934, No. 16802. Convention date, July 26, 1933. [Class 7 (ii)] In an internal-combustion engine provided with a scavenging and supercharging compressor 4 which is coupled to a turbine 7 driven by the exhaust gas of the engine, a part of the air supplied by the compressor is led by a pipe 14 direct to the exhaust pipe at 21 to cool the conveyed gas. A non-return valve 22 is fitted in the byepass 14, and preferably also means for regulating the flow of air therethrough. The scavenging air passes to the inlet valve 11 of the engine cylinder 10 through a pipe 17 and flap valve 18, and the combustion air through a cooler 19 and either a pipe 25 direct to the valve 18 or a carburetter 20 and throttling valve 23. In a Diesel engine both the combustion air and the scavenging air may be led to the inlet valve of the engine through a common pipe.
Patent GB-853363-A (GB)
Title: Thermostatic electric circuit-breakers
Filed: 1959-05-15
Abstract: 853,363. Thermal switches. VAUGHAN, V. G. May 15, 1959, No. 16803/59. Class 38 (5). An overload protector for an electric motor is assembled from a thermostat and a heater each in a separate housing and kept in stock as individual units. The thermostat unit has a recessed case 10 with contact lugs 20 and a snap-acting bi-metal disc 28. It fits on to a recessed case 12 carrying a heater 38 with terminal lugs 44 (only one shown). After the appropriate two units have been assembled the sides of terminals 44 are deformed to hold the complete assembly together.
Patent GB-1525915-A (GB)
Title: Standards converter for television signals
IPC: H04N7/01
Filed: 1977-04-22
Abstract: 1525915 Television standards converters ROBERT BOSCH GmbH 22 April 1977 [23 April 1976] 16880/77 Heading H4F The manner of operation of an interpolator in a television standards converter is altered according to the presence or absence of movement in the picture content. The converter disclosed includes line and field interpolators 10, 11 connected in series. The line interpolator is fed by odd and even field stores 3, 4. Movement is detected by a unit 5 which compares the present and preceding fields of the video signal to be converted. The movement unit feeds to a store 8 or 9 signals indicative of the elementary areas, or of the region of the field, where movement has occurred or signals indicative merely that movement has occurred. These signals control the interpolators so that, in the case of the line interpolator for example, interpolation using adjacent lines in the same field is performed if no movement has been detected, or using adjacent lines of successive fields if movement has been detected. The form of interpolation may vary from field to field or within a single field, and there may be cross-fading from one form to the other according to the degree of movement.
Patent GB-481956-A (GB)
Title: Improvements in or relating to water heaters and the like
IPC: F24H1/18
Filed: 1936-06-17
Abstract: 481,956. Delivery arrangements for hot-water boilers. ETABLISSEMENTS LEMERCIER FRERES SOC. ANON. June 17, 1936, No. 16910. Void. Convention date, Feb. 3. [Class 64 (i)] [Also in Group XXIX] A water storage heater has on the overflow hot water outlet tube a beneath its control valve e a branch pipe 4 connecting the upper part of the heater above the outlet tube to the atmosphere. The hot water outlet valve e and cold water inlet valve d are interconnected for actuation by the same control 2, which allows cold water to pass to the hot water outlet. An operating handle 35 moves eccentrically a cam 33 to open spring-pressed valves d, g allowing cold water to enter from the pipe c and pass direct to the outlet a<1>. As the valve g gradually closes, cold water passes through a clack-valve f and conduit c<1>, displacing hot water into the outlet tube a. A spring-pressed valve e at the lower end of the tube a, is opened when the cam 33 is lowered to engage the head 41 of the rod 42 of the valve e. Pipes 4, 47 form an air vent. The tension of the spring 44 of the clack-valve f is adjustable, and a cover 46 is readily removable to enable the valve to be lifted for emptying the tank.
Patent GB-1035502-A (GB)
Title: Conveyor apparatus for confectionary articles
IPC: A23G7/00
Filed: 1963-04-30
Abstract: 1,035,502. Rotary vibratory conveyers. A.E.L.-FOOD MACHINERY DIVISION Inc. April 30, 1963 [Jan. 10, 1963], No. 16948/63. Heading B8A. Confectionery articles 16 fed to a packaging system by a series of rotary vibratory platform conveyers 30 each fed by a belt conveyer 28 which is manually loaded with the confections. The platform of the conveyer 30 has a raised centre portion 58 and, near a point 65 in front of an outlet 50, has an upwardly sloping ramp 66 which approaches the outlet and from which extends a deflection surface 68. The conveyer platform is oscillated about an axis 48 by electromagnetic means 53-55, Fig. 5 (not shown). In operation, the confections are guided along a path 49 and tend to go directly into the outlet 50 or to be circulated one revolution before going into the outlet. If a ramp leading up to the outlet 50 becomes full, a line-braking cam 51 deflects the next confection to one side for recirculation along the path 49.
Patent GB-939601-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H9/22
Filed: 1960-05-13
Abstract: 939,601. Two-part couplings combined with switches. BASSANI S.p.A. May 13, 1960 [May 16, 1959], No. 16977/60. Class 38 (1). [Also in Group XXXVII] The interlocking cover 2 of a switch and fuse unit is extended to protect a combined socket for a plug connector 24. The cover 2 carries stirrups 7 which are engaged by catches 5 when the lever 3 is moved to the " ON " position, thereby locking the cover and preventing access to fuses 1. When the lever 3 is moved to " OFF " the cover 2 may be raised and spring plates 6 prevent movement of catches 5 (and thus lever 3) to the " ON " position. Spring- loaded clip contacts (Fig. 3, not shown) are arranged to be engaged by pins 11 passing through openings 10<SP>1</SP> when plug 24 is inserted in recess 14. When it is shut down the cover 2 encloses the plug 24, and a tongue 20 on a spring- loaded catch plate 17 engages a slot 16 in an earthed post 15 which passes through a hole 28 in plug 24. Thus the plug 24 cannot be disengaged (or inserted) unless the switch lever 3 is "OFF" and a hand grip 19 is pressed to release the tongue 20, allowing cover 2 to be lifted.
Patent GB-573519-A (GB)
Title: New or improved fastening means for panels, covers and other objects
IPC: F16B5/10
Filed: 1943-10-18
Abstract: 573,519. Aircraft panel and like fastenings. BENNETT, T., HURST, E., and CORNER & CO., Ltd., G. Oct. 18, 1943, No. 17121. [Class 44] In an aircraft panel or like fastening of the kind in which a stud 3 rotatably mounted in the panel 1 has radial projections 6, formed by a cross-pin or otherwise, and engaged with a spring-plate 10 secured to the support 2 by rivets or screws 11, the projections being passed through elongated apertures in support and plate and the stud rotated through 90 degrees in either direction so that the projections ride up one or other of pairs of inclined ramps 14, 16 or 15, 17 provided by the plate 10 and engage in transverse recesses 18, the projections 6 are cylindrical and the ramps 14-17 are of helical form so that the projections make contact throughout the whole of their length in every position on the ramps, and the recesses 18 are cylindrical so that the projections make similar contact therein. The edge of the aperture in plate 10 may be downwardly flanged as at 12a, the flange entering the aperture in the support when plate 10 is flattened more or less by the fastening operation. The cross-pin, inserted in the stud after the latter has been passed through the hole 8 in panel 1, is secured by indentations 7 in the pin, made close up to the stud by means of a punch. According to the Provisional Specification the plate 10, instead of being secured by rivets or screws, may have a bent-back extension to give the whole a U-form, enabling it to be clipped on to the edge of a support and located by the flanged edge of the plate apertare, entering the aperture in the support, or alternatively, the bent-back extension may be provided with a. flanged hole for engaging the support aperture, or with a semi-circular and flanged recess for engagement in a hole about one side of the stud shank. In a further alternative, the U-form may be provided at the bend with an outward extension, so that the latter and the bent-back part form a foot allowing the device to be fitted over one edge or end of a hole or slot in the support by the bent-back part and secured at the other end of the slot by the extension which may be lipped or flanged to snap on at the other end of the slot or hole. The head 4 of the stud may have a screw, driver slot 19, or may have any suitable knob or handle for rotating it.
Patent GB-810459-A (GB)
Title: Improved turbomachine rotor with air-cooled blading
Inventor: SELLS BERT EUGENE
IPC: F01D5/18
Filed: 1955-06-14
Abstract: 810,459. Turbine blades. GENERAL ELECTRIC CO. June 14, 1955, No. 17137/55. Class 110 (3). In a cooled turbine rotor comprising a number of blades fastened to a rotor disc each blade has a base with a blade root portion having a hollow projection thereon to which is attached a separate fabricated upper blade member having front and rear sections and a chamber or chambers formed between them by a partition or partitions secured to one only of the sections or alternately to the sections, the partition or partitions extending radially outwardly and angularly relative to the plane of rotation of the disc when viewed in a plane containing the axis of rotation, the base having a passageway or passageways for conveying cooling fluid to the chambers. The turbine rotor disc 11 which carries a plurality of blades 12 has a flanged member 13 bolted to its side to form a cooling channel 13a which is connected by passages 11c in the rotor to a channel 11b formed by the co-operation of recess 11a in the disc and recess 15b in the base 15 of the blading. The base 15 has a partial blade root portion 16, Fig. 4, shaped to the basic contour of the complete blade and a recessed hollow end portion 16a defined by a fillet 16b. The body 20 of the blade comprises front and back blade sections 21, 22 and dividing partitions 23a, 23b joined respectively thereto defining localized cooling chambers 24, 25, 26. The body 20 can be formed from a single piece of tapered sheet stock welded at one edge 22a or may be formed from two formed or forged pieces welded together along the leading and trailing edges. The body 20 is welded to the base 15 at the fillet 16b. The bottoms of the partitions 23a, 23b are welded or brazed into the slits 17. The partitions 23a, 23b are not radial so that centrifugal force acting on them causes them to press on the front and rear blade sections and thus dampen out blade vibration or parting of the blade member. The chambers 24, 25, 26 are supplied with coolant from the channel 11b through passages 15c.
Patent GB-1137505-A (GB)
Title: Process for the production of azines and hydrazine
Inventor: NEEDHAM BRIAN JOHN
IPC: C07C241/00
Filed: 1965-04-23
Abstract: 1,137,505. Azines. FISONS INDUSTRIAL CHEMICALS. 4 April, 1966 [23 April, 1965], No. 17161/65. Heading C2C. [Also in Division C1] Azines are produced by reacting an aqueous hypochlorite salt with aqueous ammonia in the absence of carbonyl compounds to form chloramine and reacting this with a carbonyl compound and aqueous ammonia to form the azine of the carbonyl compound used. The preferred hypochlorite salt is sodium hypochlorite. The carbonyl compound used in the second stage may have the formula in which R 1  is hydrogen, alkyl and R 2  is alkyl or aryl or R 1  and R 2  together with the carbon atom to which they are attached form a cycloaliphatic ring. Suitable carbonyl compounds are, for example, acetaldehyde, propionaldehyde, methyl isobutyl ketone, diethyl ketone, benzaldehyde, cyclohexanone and, particularly, acetone and methyl ethyl ketone.